Heho, Depends on what you mean here. Option A: You use that third party mail-server as a legitimate outbound relay. In this case, I would argue, that it makes a limited amount of sense, i.e., they configured sth. wrongly, maybe because you have no DKIM configuration coordinated with them.
Option B: You sent to an address on that server, and they forward your mail. Here, it does make some sense, I'd, say, depending on what they do. For example, I do the same, i.e., providing an _additional_ dkim sig, on forwarded mail, because I also apply SRS to messages. So, then I add a signature for the new envelope from domain from SRS, and add ARC headers as well. With best regards, Tobias -----Original Message----- From: mailop <mailop-boun...@mailop.org> On Behalf Of Henrik S via mailop Sent: Thursday, 21 April 2022 04:05 To: mailop@mailop.org Subject: [mailop] DKIM by the third party Hello My mail is sent by the third party smtp server, and the dkim signature is made for the third party domain (for this case, it's pobox.com). does this DKIM have helps to the authorization of my outgoing messages? Thanks _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
